Company lists · Data refreshed September 2026

Top 15 Open source container platforms based in the United States

RevenueBase identified 26 open source container platforms headquartered in the United States as of September 2026 and tracks 803 professional contacts across them, including 121 with verified work emails. San Francisco is the largest hub.

This list covers open source container platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
26Companies
803Contacts tracked
121Verified emails
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The 15 largest open source container platforms based in the United States

Ranked by team size
Top 15 of 26 open source container platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to open source container platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-200439 contacts →

Strong evidence

“Cloud native computing uses an open source software stack to deploy applications as microservices, packaging each part into its own container, and dynamically orchestrating those…”

Source: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceSan Jose, AZ, United StatesHQ checked Sep 14, 20261,001-5,000103 contacts →

Strong evidence

“Rancher, a proud member of the SUSE family since 2020, creates open source container management solutions that streamline software development and simplify IT operations for…”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceReston, VA, United StatesHQ checked Sep 14, 202651-20074 contacts →

Indirect evidence

“Rancher Government Solutions is specifically designed to address the unique security and operational needs of the US Government and military as it relates to application…”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 2026n/a67 contacts →

Indirect evidence

“At Layer5, we champion developer-defined infrastructure, giving engineers the power to reshape application delivery.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5029 contacts →

Indirect evidence

“Edera is defining the hardened runtime category to help enterprises move fast without breaking things.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceSan Jose, CA, United StatesHQ checked Sep 14, 20261,001-5,00011 contacts →

Partial evidence

“Full Lifecycle Container Security.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceWilmington, United StatesHQ checked Sep 14, 202651-2008 contacts →

Strong evidence

“At Kubeshop, our mission is to build a thriving open-source ecosystem and pipeline of next generation Kubernetes & Cloud Native products and projects.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“Loft Labs enables any organization to scale self-service access to Kubernetes from 10 to engineers.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceReno, NV, United StatesHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“After its initial release in 2016, Singularity was immediately accepted by the research community to meet scientists’ demands for a new application packaging methodology through…”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceWashington, DC, United StatesHQ checked Sep 14, 202611-506 contacts →

Strong evidence

“Kublr is an enterprise-grade and production-ready container management platform focused on the Kubernetes and infrastructure layers, providing operations and governance…”

Source: RevenueBase Database · checked Sep 14, 2026
11Strong evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-505 contacts →

Strong evidence

“At 360 Cloud Platforms, our mission is to break down the complexities of Kubernetes, open-source technologies and the vast CNCF landscape.”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceSan Jose, CA, United StatesHQ checked Sep 14, 202611-505 contacts →

Strong evidence

“Project Calico is an open-source project with an active development and user community.”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-2004 contacts →

Strong evidence

“Calm.io is a complete platform for automating DevOps in modern environments comprised of containers, clouds and microservices applications- Effortlessly deploy, manage and operate…”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“Evolute provide the next generation of server virtualization.”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“We know how to help your team succeed with cloud native software development workflows and infrastructure management.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 15 of 26 open source container platforms based in the United States

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Open source container platforms based in the United States at a glance

As of Sep 14, 2026
15.1%Verified-email coverage
30.9Average contacts per company
11-50Median size (employees)
23.1%Largest-city concentration · San Francisco
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
9
51-200
6
1,001-5,000
2
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 26 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among open source container platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “open source container platforms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names open source container platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among open source container platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 121 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names open source container platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many open source container platforms are there based in the United States?

RevenueBase identified 26 open source container platforms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Cloud Native Computing Foundation Cncf, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most open source container platforms?

San Francisco leads with 6 headquartered companies, followed by San Jose (3) and Austin (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 121 verified decision-maker contacts tracked across these 26 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.